25ml Glassco Borosilicate Glass Volumetric Flask with Plastic Stopper

25ml Glassco Borosilicate Glass Volumetric Flask with Plastic Stopper

The Glassco 25 mL Class A volumetric flask gives you traceable accuracy for preparing and measuring laboratory solutions. Constructed from ASTM E438 Type I Class A Borosilicate Glass 3.3, it provides excellent chemical resistance, dimensional stability and clarity for consistent use in analytical procedures.

Each flask is calibrated to ISO 1042 and marked with a blue printed graduation and a finely diamond ground meniscus for clear visual alignment. The precision formed neck allows smooth filling to the calibration line, whilst the plastic stopper offers a tight, inert closure that safeguards prepared solutions. Each unit is batch certified, ensuring traceable calibration accuracy for compliance in controlled laboratory environments. Designed for frequent handling, it maintains reliable volumetric performance across repeated analytical cycles.

Practical Applications
– Preparation and measurement of standard solutions
– Volumetric analysis and reagent dilution
– Quality control and production testing
– Research and education in analytical chemistry
– Routine laboratory calibration work

Key Features
– Class A calibration, 25 mL capacity
– ASTM E438 Type I Class A Borosilicate 3.3 glass construction
– Blue print with diamond ground meniscus mark
– Precision formed neck for controlled filling and accurate reading
– Plastic stopper, chemical resistant
– Batch certified for traceable calibration accuracy

Standards
– ISO 1042
– ASTM E438 Type I Class A

Specifications
– Capacity: 25 mL
– Material: Borosilicate Glass 3.3
– Colour: Clear
– Graduated: Yes (blue print, diamond ground meniscus)
– Calibration: Class A (20 °C TC, In)
– Batch Certification: Available for download from the manufacturer’s website
– Socket Size:
– Stopper: Polyethylene (PE)
– Autoclavable: TBC
– Dishwasher Safe: TBC
– Brand: Glassco

Accurate, traceable and reliable, the Glassco 25 mL Class A volumetric flask provides stable performance for precision solution preparation and analytical measurement.